Patents by Inventor Graeme Foubister
Graeme Foubister has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11085263Abstract: A knife for performing a downhole cutting operation includes two spaced-apart blades positioned respectively at a trailing side and leading side of the knife. The blade at the trailing side defines a first cutting element of the knife and the blade at the leading side defines a second cutting element of the knife. The first cutting element extends to a radially outermost position of the knife such that the first cutting element initially cuts a downhole casing during the initial cutting operation of the knife. The second cutting element is not involved in the cutting of the casing during the initial cutting operation.Type: GrantFiled: April 13, 2018Date of Patent: August 10, 2021Inventor: Graeme Foubister
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Patent number: 10322912Abstract: A subsea connector system (10) for providing a connection with a subsea well component comprises a latch assembly (14) defining a through bore and a latch member (18) mounted on the latch assembly. A mandrel (20) extends through said bore of the latch assembly, wherein the mandrel and the latch assembly are axially and rotatably moveable relative to each other in a predefined relative movement sequence to operate the latch member and configure the connector system between connected and disconnected configurations. The connector system also comprises a conveyance connector (22) for providing a connection between a conveyance member (24) and the mandrel such that a conveyance member may permit an axial movement component of the predefined movement sequence. A rotation interface (26) is mounted on one of the mandrel and the latch assembly such that a subsea manipulator may permit a rotational movement component of the predefined relative movement sequence.Type: GrantFiled: June 20, 2016Date of Patent: June 18, 2019Assignee: Weatherford U.K. LimitedInventors: Steven Allan Canny, Graeme Foubister, Chika Mba Uduma
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Patent number: 10167696Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: GrantFiled: May 23, 2016Date of Patent: January 1, 2019Assignee: Weatherford Technology Holdings, LLCInventors: Graeme Foubister, Graeme K. Smith, Andrew Thomson, Kannan Devarajan, Andres Fuenmayor
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Publication number: 20180298710Abstract: A knife for performing a downhole cutting operation includes two spaced-apart blades positioned respectively at a trailing side and leading side of the knife. The blade at the trailing side defines a first cutting element of the knife and the blade at the leading side defines a second cutting element of the knife. The first cutting element extends to a radially outermost position of the knife such that the first cutting element initially cuts a downhole casing during the initial cutting operation of the knife. The second cutting element is not involved in the cutting of the casing during the initial cutting operation.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Inventor: Graeme FOUBISTER
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Publication number: 20180148301Abstract: A subsea connector system (10) for providing a connection with a subsea well component comprises a latch assembly (14) defining a through bore and a latch member (18) mounted on the latch assembly. A mandrel (20) extends through said bore of the latch assembly, wherein the mandrel and the latch assembly are axially and rotatably moveable relative to each other in a predefined relative movement sequence to operate the latch member and configure the connector system between connected and disconnected configurations. The connector system also comprises a conveyance connector (22) for providing a connection between a conveyance member (24) and the mandrel such that a conveyance member may permit an axial movement component of the predefined movement sequence. A rotation interface (26) is mounted on one of the mandrel and the latch assembly such that a subsea manipulator may permit a rotational movement component of the predefined relative movement sequence.Type: ApplicationFiled: June 20, 2016Publication date: May 31, 2018Inventors: Steven Allan CANNY, Graeme FOUBISTER, Chika Mba UDUMA
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Publication number: 20160281457Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: ApplicationFiled: May 23, 2016Publication date: September 29, 2016Inventors: Graeme FOUBISTER, Graeme K. SMITH, Andrew THOMSON, Kannan DEVARAJAN, Andres FUENMAYOR
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Patent number: 9371711Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: GrantFiled: September 30, 2014Date of Patent: June 21, 2016Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Graeme Foubister, Graeme K. Smith, Andrew Thomson, Kannan Devarajan, Andres Fuenmayor
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Publication number: 20150013971Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: ApplicationFiled: September 30, 2014Publication date: January 15, 2015Inventors: Graeme Foubister, Graeme K. Smith, Andrew Thomson, Kannan Devarajan, Andres Fuenmayor
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Patent number: 8851166Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: GrantFiled: January 6, 2012Date of Patent: October 7, 2014Assignee: Weatherford/Lamb, Inc.Inventors: Graeme Foubister, Graeme K. Smith, Andrew Thomson, Kannan Devarajan, Andres Fuenmayor
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Publication number: 20120175108Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.Type: ApplicationFiled: January 6, 2012Publication date: July 12, 2012Inventors: Graeme Foubister, Graeme K. Smith, Andrew Thomson, Andres Fuenmayor